Manage who can find you on facebook

By default, your privacy settings allow everyone to find you with search and friend finder using your contact info, such as your email address and phone number. But when people click on your name in a search result, they won’t be able to see all of the information in your profile (timeline). They'll always be able to view your name, gender, profile picture, username, user id (account number) and networks.

Your privacy settings determine whether people can view additional information when they click on your name in a search result.

If you’d like to modify who can look you up using your email address or phone number:

1. Click the account menu  at the top right of any Facebook page and choose Privacy Settings
2. Next to the How You Connect heading, click Edit Settings
3. Select your preference from the dropdown menu next to Who can look you up using the email address or phone number you provided?

This setting doesn't control who can message you on Facebook.
To do that:

1. Click the account menu  at the top right of any Facebook page and choose Privacy Settings
2. Next to the How You Connect heading, click Edit Settings
3. Select your preference from the dropdown menu next to Who can send you Facebook messages? 

After these settings, when clicking done, you will be able to control who can find you on facebook using phone or email, who can send you friend request or who can send you message on facebook.